Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doi cua lua snippets" » "hoi cua lua snippets", "dai cua lua snippets", "dong cua lua snippets", "doi cua luat snippets", "doi ca lua snippets", "doi cua rua snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi cua lua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( doi cua lua snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi cua lua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.